Small and medium tonnage low-speed motor vehicles powered by diesel engines are engaged in road transport, including three-wheeled agricultural transport vehicles and four-wheeled agricultural transport vehicles, but excluding wheeled tractor units, walking tractor units and walking variant transport vehicles.
Three-wheeled agricultural vehicle
The maximum design speed shall not exceed 50km/ 1 1, the maximum design total mass shall not exceed 200Okg, and the length, width and height of the three-wheeled agricultural transport vehicle shall not exceed 4.6m, 1.6m and 2m respectively.
Four-wheeled agricultural vehicle
The maximum design speed is not more than 70km/h, the maximum design total mass is not more than 4500kg, and the length, width and height of the four-wheeled agricultural transport vehicle are less than 6m, 2m and 2.5m respectively.
Excerpted from national standards.